<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="./lib/vue-2.4.0.js"></script>
    <link rel="stylesheet" href="./lib/bootstrap-3.3.7.css">
</head>

<body>
    <div id="app">
        <a href="" @click.prevent="flag=true">登录</a>
        <a href="" @click.prevent="flag=false">注册</a>
        <login v-if="flag"></login>
        <register v-else="flag"></register>
    </div>
    <script>
        Vue.component('login', {
            template: "<h1>登录组件</h1>"
        })
        Vue.component('register', {
            template: "<h2>注册组件</h2>"
        })
        var vm = new Vue({
            el: "#app",
            data: {
                flag: false,

            },
            methods: {

            },
        })
    </script>
</body>

</html>